Home / 126,427.20-174,474.84-72,712.24

Finding the Fourth Proportional to 126,427.20, 174,474.84 and 72,712.24

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Solution

The fourth proportional to 126,427.20, 174,474.84 and 72,712.24 is: 100,345.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,427.20 : 174,474.84 = 72,712.24 : x
  2. Step 2: Convert to fraction form
    126,427.20/174,474.84 = 72,712.24/x
  3. Step 3: Cross multiply
    126,427.20x = 174,474.84 × 72,712.24
  4. Step 4: Simplify right side
    126,427.20x = 12,686,456,440.04
  5. Step 5: Solve for x
    x = 12,686,456,440.04/126,427.20
  6. Step 6: Final answer
    x = 100,345.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.